
这道题的简便运算怎么做
2个回答
展开全部
38x37+36x62+38
=38x37+(38-2)x62+38x1
=38x37+38x62-2x62+38x1
=38x(37+62+1)-2x62
=38x100-124
=3800-124
=3676
=38x37+(38-2)x62+38x1
=38x37+38x62-2x62+38x1
=38x(37+62+1)-2x62
=38x100-124
=3800-124
=3676
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